Concept Representation Reflects Multimodal Abstraction: A Framework for Embodied Semantics
Concept Representation Reflects Multimodal Abstraction: A Framework for Embodied Semantics
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DOI：
10.1093/cercor/bhv020
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发表时间：
2016-05-01
期刊：
影响因子：
3.7
通讯作者：
Seidenberg, Mark S.
中科院分区：
文献类型：
--
作者：
Fernandino, Leonardo;Binder, Jeffrey R.;Seidenberg, Mark S.
最近的研究表明，感觉和运动皮质区在概念的神经表征中起着重要的作用。然而，人们对这个表征系统的整体结构知之甚少，包括整合不同类型的感觉和运动信息的更高级别区域所扮演的角色。本研究通过考察多种感觉-运动通道对语义词加工的同时贡献来解决这一问题。采用多变量fMRI设计，我们研究了与5个感觉运动属性颜色，形状，视觉运动，声音和操纵900个单词相关的激活。对每个属性作出反应的区域使用属性与每个词的含义的相关性的独立评级来识别。结果表明，这些方面的概念知识编码在多模态和更高层次的单峰领域参与处理相应类型的信息在感知和行动，在协议的体现理论的语义。他们还揭示了一个层次系统的抽象感觉运动表征纳入对象之间的相互作用和对象感知过程的主要分工。
Recent research indicates that sensory and motor cortical areas play a significant role in the neural representation of concepts. However, little is known about the overall architecture of this representational system, including the role played by higher level areas that integrate different types of sensory and motor information. The present study addressed this issue by investigating the simultaneous contributions of multiple sensory-motor modalities to semantic word processing. With a multivariate fMRI design, we examined activation associated with 5 sensory-motor attributes color, shape, visual motion, sound, and manipulation for 900 words. Regions responsive to each attribute were identified using independent ratings of the attributes' relevance to the meaning of each word. The results indicate that these aspects of conceptual knowledge are encoded in multimodal and higher level unimodal areas involved in processing the corresponding types of information during perception and action, in agreement with embodied theories of semantics. They also reveal a hierarchical system of abstracted sensory motor representations incorporating a major division between object interaction and object perception processes.